﻿// VsPkg.cs : Implementation of VSTime
//

using System;
using System.Diagnostics;
using System.Globalization;
using System.Runtime.InteropServices;
using System.ComponentModel.Design;
using Microsoft.Win32;
using Microsoft.VisualStudio.Shell.Interop;
using Microsoft.VisualStudio.OLE.Interop;
using Microsoft.VisualStudio.Shell;
using EnvDTE;
using System.Windows.Forms;
using dasFX.VSTime.API;

namespace dasFX.VSTime
{
    /// <summary>
    /// This is the class that implements the package exposed by this assembly.
    ///
    /// The minimum requirement for a class to be considered a valid package for Visual Studio
    /// is to implement the IVsPackage interface and register itself with the shell.
    /// This package uses the helper classes defined inside the Managed Package Framework (MPF)
    /// to do it: it derives from the Package class that provides the implementation of the 
    /// IVsPackage interface and uses the registration attributes defined in the framework to 
    /// register itself and its components with the shell.
    /// </summary>
    // This attribute tells the registration utility (regpkg.exe) that this class needs
    // to be registered as package.
    [PackageRegistration(UseManagedResourcesOnly = true)]
    // A Visual Studio component can be registered under different regitry roots; for instance
    // when you debug your package you want to register it in the experimental hive. This
    // attribute specifies the registry root to use if no one is provided to regpkg.exe with
    // the /root switch.
    [DefaultRegistryRoot("Software\\Microsoft\\VisualStudio\\9.0")]
    // This attribute is used to register the informations needed to show the this package
    // in the Help/About dialog of Visual Studio.
    [InstalledProductRegistration(false, "#110", "#112", "1.0", IconResourceID = 400)]
    // In order be loaded inside Visual Studio in a machine that has not the VS SDK installed, 
    // package needs to have a valid load key (it can be requested at 
    // http://msdn.microsoft.com/vstudio/extend/). This attributes tells the shell that this 
    // package has a load key embedded in its resources.
    [ProvideLoadKey("Standard","1.0", "VSTime", "dasFX", 104)]
    // This attribute is needed to let the shell know that this package exposes some menus.
    [ProvideMenuResource(1000, 1)]
    // This attribute registers a tool window exposed by this package.
    [ProvideToolWindow(typeof(VSTimeWindow))]
    [ProvideAutoLoad(Microsoft.VisualStudio.Shell.Interop.UIContextGuids.SolutionExists)]
    [Guid(GuidList.guidVSTimePkgString)]
    public sealed class VSTimePackage : Package
    {
        private EnvDTE.DTE _dte;
        IVsActivityLog _log;
        private int _solutionID = 0;

        /// <summary>
        /// Default constructor of the package.
        /// Inside this method you can place any initialization code that does not require 
        /// any Visual Studio service because at this point the package object is created but 
        /// not sited yet inside Visual Studio environment. The place to do all the other 
        /// initialization is the Initialize method.
        /// </summary>
        public VSTimePackage()
        {
            Trace.WriteLine(string.Format(CultureInfo.CurrentCulture, "Entering constructor for: {0}", this.ToString()));
        }

        
        /// <summary>
        /// This function is called when the user clicks the menu item that shows the 
        /// tool window. See the Initialize method to see how the menu item is associated to 
        /// this function using the OleMenuCommandService service and the MenuCommand class.
        /// </summary>
        private void ShowToolWindow(object sender, EventArgs e)
        {
            OpenToolWindow();
        }

        private void OpenToolWindow()
        {
            // Get the instance number 0 of this tool window. This window is single instance so this instance
            // is actually the only one.
            // The last flag is set to true so that if the tool window does not exists it will be created.
            ToolWindowPane window = this.FindToolWindow(typeof(VSTimeWindow), 0, true);
            if ((null == window) || (null == window.Frame))
            {
                throw new NotSupportedException(Resources.CanNotCreateWindow);
            }
            IVsWindowFrame windowFrame = (IVsWindowFrame)window.Frame;
            Microsoft.VisualStudio.ErrorHandler.ThrowOnFailure(windowFrame.Show());

            if (_solutionID != 0)
            {
                ((VSTimeWindow)window).LoadSolution(_solutionID);
            }
        }

        /////////////////////////////////////////////////////////////////////////////
        // Overriden Package Implementation
        #region Package Members

        /// <summary>
        /// Initialization of the package; this method is called right after the package is sited, so this is the place
        /// where you can put all the initilaization code that rely on services provided by VisualStudio.
        /// </summary>
        protected override void Initialize()
        {
            _log = Package.GetGlobalService(typeof(SVsActivityLog)) as IVsActivityLog;
            _dte = Package.GetGlobalService(typeof(EnvDTE.DTE)) as EnvDTE.DTE;
            
            Trace.WriteLine(string.Format(CultureInfo.CurrentCulture, "Entering Initialize() of: {0}", this.ToString()));
            _log.LogEntry((UInt32)__ACTIVITYLOG_ENTRYTYPE.ALE_INFORMATION, "VSTime", string.Format(CultureInfo.CurrentCulture, "Entering Initialize() of: {0}", this.ToString()));
            base.Initialize();

            // Add our command handlers for menu (commands must exist in the .vsct file)
            OleMenuCommandService mcs = GetService(typeof(IMenuCommandService)) as OleMenuCommandService;
            if (null != mcs)
            {
                // Create the command for the menu item.
                CommandID menuCommandID = new CommandID(GuidList.guidVSTimeCmdSet, (int)PkgCmdIDList.cmdVSTime);
                MenuCommand menuItem = new MenuCommand(MenuItemCallback, menuCommandID);
                mcs.AddCommand(menuItem);
                // Create the command for the tool window
                CommandID toolwndCommandID = new CommandID(GuidList.guidVSTimeCmdSet, (int)PkgCmdIDList.cmdVSTimeWnd);
                MenuCommand menuToolWin = new MenuCommand(ShowToolWindow, toolwndCommandID);
                mcs.AddCommand(menuToolWin);
            }
            try
            {
                VSTimeEventHandler handler = new VSTimeEventHandler(_dte);
                handler.ExceptionEvent += new VSTimeEventHandler.OnExceptionEvent(handler_ExceptionEvent);
                handler.SolutionOpenedEvent += new VSTimeEventHandler.OnSolutionOpened(handler_SolutionOpenedEvent);
            }
            catch (Exception ex)
            {
                IVsUIShell uiShell = (IVsUIShell)GetService(typeof(SVsUIShell));
                _log.LogEntry((UInt32)__ACTIVITYLOG_ENTRYTYPE.ALE_ERROR, "VSTime", ex.Message);
                int result;
                Guid clsid = Guid.Empty;
                uiShell.ShowMessageBox(0, ref clsid,
                    "VSTime",
                    string.Format("An error ocurred initializing VSTime: {0}", ex.Message),
                    string.Empty, 0,
                    OLEMSGBUTTON.OLEMSGBUTTON_OK, OLEMSGDEFBUTTON.OLEMSGDEFBUTTON_FIRST, OLEMSGICON.OLEMSGICON_WARNING, 0, out result);
            }
        }

        void handler_SolutionOpenedEvent(int SolutionID)
        {
            _solutionID = SolutionID;
            ToolWindowPane window = this.FindToolWindow(typeof(VSTimeWindow), 0, false);

            if (window != null)
            {
                ((VSTimeWindow)window).LoadSolution(SolutionID);
            }
        }

        /// <summary>
        /// Fired when an exception is thrown by VSTime
        /// </summary>
        /// <param name="ex"></param>
        void handler_ExceptionEvent(Exception ex)
        {
            IVsUIShell uiShell = (IVsUIShell)GetService(typeof(SVsUIShell));
            _log.LogEntry((UInt32)__ACTIVITYLOG_ENTRYTYPE.ALE_ERROR, "VSTime", ex.Message);
            int result;
            Guid clsid = Guid.Empty;
            uiShell.ShowMessageBox(0, ref clsid,
                "VSTime",
                string.Format("An error ocurred reporting an event through VSTime: {0}", ex.Message),
                string.Empty, 0,
                OLEMSGBUTTON.OLEMSGBUTTON_OK, OLEMSGDEFBUTTON.OLEMSGDEFBUTTON_FIRST, OLEMSGICON.OLEMSGICON_WARNING, 0, out result);
        }
        #endregion

        /// <summary>
        /// This function is the callback used to execute a command when the a menu item is clicked.
        /// See the Initialize method to see how the menu item is associated to this function using
        /// the OleMenuCommandService service and the MenuCommand class.
        /// </summary>
        private void MenuItemCallback(object sender, EventArgs e)
        {
            OpenToolWindow();
        }

    }
}